Rangers keeper Allan McGregor insists his team-mates are ready to battle city rivals Celtic on Sunday.
Gers' perfect start to the new season has been matched by the Bhoys and something must give at Parkhead.
Rangers come into the match following a morale-boosting draw with Valencia and McGregor does not believe fatigue will be a factor this weekend.
McGregor and co have put their UEFA Champions League draw behind them and are now focusing all their efforts on bringing down Celtic.
"The boys are all looking really fit. They have bundles of energy," he told the Evening Times.
"We are looking good for Sunday's match now - we'll be ready to go."
Maurice Edu's goal gave Rangers the lead against Los Che, but his second-half own goal ensured the spoils were shared and McGregor was particularly impressed by counterpart Cesar Sanchez.
"The boys were all disappointed with the amount of chances we had in the game that we didn't manage to go on and win it," he continued.
"I thought their goalkeeper Cesar Sanchez did really well with some of the shots we had at goal."